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Finding the Fourth Proportional to 424,908.24, 636,968.70 and 144,228.66

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Solution

The fourth proportional to 424,908.24, 636,968.70 and 144,228.66 is: 216,209.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,908.24 : 636,968.70 = 144,228.66 : x
  2. Step 2: Convert to fraction form
    424,908.24/636,968.70 = 144,228.66/x
  3. Step 3: Cross multiply
    424,908.24x = 636,968.70 × 144,228.66
  4. Step 4: Simplify right side
    424,908.24x = 91,869,142,062.94
  5. Step 5: Solve for x
    x = 91,869,142,062.94/424,908.24
  6. Step 6: Final answer
    x = 216,209.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.